Overview

The user kneads chakra inside their body and convert it into fire, which is then expelled from the mouth in a large stream. The blaze is drawn into a spiral when the user expands their stomach,[1] which will engulf the opponent in a massive vortex, giving them no option to escape, leaving them to suffer and burn.[2] If needed, Kamui can be used to draw out a whirlwind, aiding the formation of the fiery spiral.[3]

As this technique combines the use of the Sharingan and Fire Release, common characteristics of the Uchiha clan, it is indeed a formidable ninjutsu.[1]